XF\Template\Templater::filterReplace() redundant code?

[gigipmc]

Not a bug but I guess can be cleaned up: XF\Template\Templater::filterReplace() contains the following code:

PHP:

if (!is_array($from))
{
    $from = [$from => $to];
}

if (!is_array($from))
{
    return $value;
}

How can the 2nd conditional ever come true when the first conditional just made sure $from is an array..

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